SWIM often obtains impure ketone and instead of being smart enough to redistill (which swim did last time) SWIM used it in an Al/Hg osium/brightstar style, when extracting with toulene swim get a redish/pink color in the toulene, obvious impurities. what if swim passed the post rxn toulene through a thin layer of charcoal, would this remove the impurity and leave the product in the toulene, or will this just reduce yields and SWIM will still have a bitch of a time crystallizing the impure solution?